More Environment Stories

Training to Preserve Saguaro Park Through Good Practices

Traveling pair from 'Leave No Trace Center for Outdoor Ethics' will be at park this weekend.

State Issues Its OKs on Rosemont Water Quality

Decision now moves to federal level - Forest Service and Army Corps of Engineers.

Tucson Winter Rain Has Been Reliable So Far

4 inches in 2 months gives region boost it needs in cycle, meteorologists say.

Border Security Efforts Clash with Movement of Wildlife

Environmentalists say fencing cuts off many animals; ranchers, others say security is uppermost.

Avra Valley Earth Fissures Ongoing Hazard, Geologist Warns

State's latest report shows subsidence from groundwater pumping continues in Southern Arizona.

A War On Grass

Residents in southern Arizona are fighting an invasive, resilient species that threatens the Sonoran Desert way of life.

Saguaro National Park May Raise Some Fees

Park officials say increases have been authorized by National Park Service

Three Lambs Born to Bighorn Sheep in Catalinas

Two adults found dead since last release to build herd; that effort going well, state wildlife official says.

Hybrid Cars Make 'Clean Air Blue Skies' Eligibility

Six vehicles designated by state transportation officials to get plates allowing single-occupancy in HOV lanes.

Tucson's Native Seeds/SEARCH Gets New Leader

Arizonan Larrie Warren takes over food crop preservation organization with goal of expanding its mission.

Colorado River Delta 'Pulse Flow' Shows Signs of Success

Water release at Yuma dam enhances vegetation, opens waterway to Sea of Cortez for first time in half-century.

Tucson Electric Power Says It Won't Buy Coal Mine

Environmentalists urge utility to emphasize solar, other clean energy sources ahead of fossil fuels.

Parts of Pima County Under Citrus Quarantine

Presence of an insect that can carry disease found in region.

4.7 Earthquake Hit Sedona Sunday Night

Temblor centered 7 miles north of the northern Arizona town and 6 miles underground; no injuries reported.

Female Gray Wolf Wanders in Grand Canyon

Animal was first seen on North Rim earlier this month; wildlife officials confirm species.

More Bighorn Sheep Released North of Tucson

14 sheep scamper uphill to join a dozen surviving from last year's release; more coming Friday.

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